West Nile Virus Essay

West Nile Virus Essay

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An estimated 80% of people with West Nile Virus are asymptomatic (Sejavar, 2014). This is explained by the disease’s nature of attack on the host’s immune system and how much the host can handle as a result. Another reason is due to the different strains of West Nile Virus and how virulent they are (Jeha & Sila, 2009). A large percentage of the patients that develop symptoms due to WNV suddenly develop a congenital, fiery fever in other words known as West Nile Fever (WNF) (Jeha & Sila, 2009). Another significant complication caused by WNV as seen in about 1% of the population that gets infected is illness affecting nerve organs which is caused by the invasive nature of the disease which ruptures areas of the Central Nervous System causing infection in these structures (Sejvar, 2014). Neurologic invasion is usually seen several days after the onset of the systemic illness. The most common symptoms include; headache, altered level of consciousness, and focal weakness seen in different variations (Sejvar, 2014). Some of the neuroinvasive diseases caused by WNV are; encephalitis, meninigitis and acute flaccid paralysis (Sejvar, 2014). The inflammation of the connective tissue layers of the brain otherwise known as West Nile Meningitis is the largest contributor of neuroinvasive disease in the younger age groups of those infected with WNV. West Nile Encephalitis is more common in the older and immunosuppressed population. West Nile Encephalitis is a viral infection of the brain parenchyma itself. West Nile Poliomyelitis also develops as a result of WNV and it is characterized by the presence of fever, meningitis and flaccid paralysis and it affects part of the spinal cord causing major complications (Sejvar, 2014). It is impo...

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...doi: 10.3390/v5112856

7. Chong, M., Chua, A., Tan, T., Tan, S., & Ng, M. (2014). Microscopy techniques in flavivirus research. Micron, 59, 33-43. Retrieved from http://www.sciencedirect.com.ezproxy.undmedlibrary.org/science/article/pii/S0968432813002011

8. Watson, J., Pertel, P., Jones, R., Siston, A., Paul, W., Austin, C., & Gerber, S. (2004). Clinical characteristics and functional outcomes of west nile fever. Annals of Internal Medicine, (141), 360-365. Retrieved from www.annals.org

9. Mohammad, S., & Mahmoud, F. (2009). Successful treatment with intravenous immunoglobulin of acute flaccid paralysis caused by west nile virus. The Permanent Journal, 13(3), 43-46. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2911811/

10. Mahon, C., & Manuselin, G. (2011). Textbook of diagnostic microbiology. (4th ed., p. 418). St. Louis: Elsevier.

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